Pyramex Reusable Earplugs in Plastic Case 25dB Orange 1/pair B270DFC3 PI. Three flanges of flexible rubber form a cozy seal for all size ear canals. Packaged for retail. Features of Pyramex Reusable Earplugs in Plastic Case 25dB Orange 1/pair: Nrr 25db Constructed of flexible rubber for superb comfort Three flanges of flexible rubber form a cozy seal for all size ear canals Packaged for retail Package Contents: Pyramex Reusable Earplugs in Plastic Case 25dB Orange 1/pair Constructed of flexible rubber for superb comfort. Three flanges of flexible rubber form a cozy seal for all size ear canals. Packaged for retail. PIPYRP3001